bob, what can you tell us? >> reporter: well, chris, we can tell you that it's not exactly clear what is happening with secretary clinton's health. all we have is a statement from her office. the hospital isn't saying anything and the the hospital says that she had this blood clot that stemmed from the concussion and she's being treated with blood-thinning drugs. the problem is that usually when blood clots come from concussions, they can't be treated with blood clots. so, either it's not really related to the concussion and she's got a blood clot in her leg or something, or there's something else going on that we're not being told. and right now, we're just sort of seeking that clarification and hoping for the best as she's being observed, as they say, for the next couple of weeks -- excuse me, for the next couple days, to make sure she's okay. chris? >> bob bazell, thank you for the time. >>> the opening bell just rang on wall street. despite the fiscal cliff deadline looming just hours from now, the markets